soc(System on Chip)片上系统cpu只包括运算器和控制器.早期 的系统是指在PCB上有cpu和Nand控制器,LCD控制器之类的控制器,构成一个系统. cpu和这些控制器之间用pcb板上的总线相连,各自独立.但是随着半导体工艺的发展,可以将上述的各种控制器和cpu集成在一起,各部件用片内总线与cpu相连,构成一个系统,因此叫做soc.arm公司值提供cpu的标准(还有总线),卖给各个制造芯片的厂商.…
来之\kernel\Documentation\devicetree\usage-model.txt Linux and the Device Tree -------------------------The Linux usage model for device tree data Author: Grant Likely <grant.likely@secretlab.ca> This article describes how Linux uses the device tree.…
doc/README.kconfig Tips to add/remove boards------------------------- When adding a new board, the following steps are generally needed: [1] Add a header file include/configs/<target>.h [2] Make sure to define necessary CONFIG_SYS_* in Kconfig: …